Question

explain working of circuit when connected to emf device​

Answer 1

Answer:

In electromagnetism and electronics, electromotive force (emf, denoted {\displaystyle {\mathcal {E}}}{\mathcal {E}} and measured in volts),[1] is the electrical action produced by a non-electrical source.[2] Devices (known as transducers) provide an emf[3] by converting other forms of energy into electrical energy,[3] such as batteries (which convert chemical energy) or generators (which convert mechanical energy).[2] Sometimes an analogy to water pressure is used to describe electromotive force.[4] (The word "force" in this case is not used to mean forces of interaction between bodies).